This is just to demonstrate the command line arguments in a shell script
#!/bin/bash
# Script that demonstrate, command line arguments
echo "Total number of command line argument are: $#"
# Script that demonstrate, command line arguments
echo "Total number of command line argument are: $#"
echo "script name is: $0"
echo "$1 is first argument"
echo "$2 is second argument"
echo "All of them are :- $* or $@"
# sh filename.sh 1 2 3 4 5 (arguments)
$* - This denotes all the parameters passed to the script at the time of its execution
$@ - denotes all the parameters passed to the script at the time of its execution
$0 - Name of the shell script being executed
$$ - Pid of current process
$# - Number of arguments specified in the command line
$? - Exit status of the last command
$* - This denotes all the parameters passed to the script at the time of its execution
$@ - denotes all the parameters passed to the script at the time of its execution
$0 - Name of the shell script being executed
$$ - Pid of current process
$# - Number of arguments specified in the command line
$? - Exit status of the last command
To see the process Id of the current shell
# echo $$
Exit status of a command
# echo $?
The above symbols are known as positional parameters.
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